# Ruby Ella Hotel Cologne by IHG, Cologne

Roost Score **8.60/10**, from a guest rating of 9
across 8,355 reviews. 20 September 2026.

| Component | Value |
|---|---|
| Guest rating as published | 9 |
| Reviews behind it | 8,355 |
| Country mean | 8.328 |
| After evidence weighting | 8.996 |
| Country re-basing weight | 0.3 |
| **Roost Score** | **8.60** |

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Source: HotelRoost — https://hotelroost.com/hotels/germany/cologne/ruby-ella-hotel-cologne-by-ihg
Retrieved: 20 September 2026
Scoring method: /methodology